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For Immediate Release:
2/2/2007
For More Information:
Contact Ben Wright
(617) 747-4313

Pollution Blamed for Global Warming in Authoritative Scientific Report

As the new home of MASSPIRG's environmental work, Environment Massachusetts can be contacted regarding this news release.  

BOSTON—The world’s scientists are more than 90% certain that human activity – primarily burning fossil fuels to power cars, power plants, and factories – is responsible for most of the observed increase in global average temperatures since the mid-20 th century, according to a consensus report released early this morning by the Intergovernmental Panel on Climate Change (IPCC), a United Nations body charged with assessing the scientific record on global warming.

The report finds that warming of the climate is “unequivocal” and warns that temperatures could further increase substantially if serious action is not taken to reduce emissions of the pollutants that cause global warming.

Cars and power plants are the largest sources of these emissions, though the U.S. could reduce its emissions immediately using off-the-shelf technologies to improve energy efficiency and shift to renewable energy sources.

“Sections of this report read like the Book of Revelations. But there’s still time to protect future generations if Massachusetts and hopefully the Congress put strict limits on global warming pollution,” said Diana Connett, Energy Associate at MASSPIRG.

Today’s report is the first volume of the IPCC’s Fourth Assessment Report. It synthesizes the peer-reviewed research published prior to 2006 on the science underlying global warming. Additional volumes, examining global warming impacts and options for reducing future warming, are due out later this year. The full report includes input from more than 2,500 experts worldwide . The IPCC released its last assessment report in 2001.

Among the major findings of today’s report include the following:

  • Human Activities to Blame: It is very likely (>90%) that human activities – primarily burning fossil fuels – have caused most of the observed increase in global average temperatures since the mid-20 th century.
  • Record Temperatures: 11 of the last 12 years rank among the 12 warmest years on record. Cold days, cold nights, and frost have become less frequent, while hot days, hot nights, and heat waves have become more frequent.
  • More Intense Tropical Storms: There has been an increase in intense hurricane and tropical typhoon activity since about 1970. The report also finds that it “is likely that future tropical cyclones (typhoons and hurricanes) will become more intense, with larger peak wind speeds and more heavy precipitation” associated with warmer oceans.

Connett noted that the report is inherently conservative because it reflects the consensus of hundreds of parties, including industry groups and governments opposed to taking action to reduce global warming pollution. In addition, the report does not include any research published in 2006, though there have been major research developments on sea level rise and hurricane intensity, among many other areas.

The United Nations Environmental Program and the World Meteorological Organization established the IPCC in 1988.

In Massachusetts, Gov. Patrick recently signed the Regional Greenhouse Gas Initiative (RGGI), which is the first regional pact in the country to reduce global warming pollution. RGGI will put a cap on the amount of pollution that power plants can emit and reduce that cap over time.

“This makes clear that it’s time for action, and half-measures won’t cut it,” said Connett. “Here in Massachusetts, we need real leadership to finish RGGI and then adopt more comprehensive, mandatory, science-based pollution reduction targets. And in Congress, we need lawmakers to put a strong federal policy in place as soon as possible.”

MASSPIRG works with the Massachusetts Climate Coalition, which is a group of organizations that advocate for global warming pollution reductions, in order to pass climate safe legislation in Massachusetts. The coalition has put forth an aggressive agenda to increase energy efficiency, promote the use of renewable energy, and ratchet down the amount of global warming pollution emitted in all sectors of the economy.

“If anyone was still wondering, the debate is indeed over. Now is the time to get to work to pass meaningful legislation that reduces pollution quickly enough to avoid the worst effects of global warming,” concluded Connett.